not close it. If you type several mails in an emacs session they will
accumulate and make switching between buffers more annoying. You can
avoid that behavior by adding `(setq message-kill-buffer-on-exit t)`
-in your `.emacs` file (or doing M-x customize-variable
-message-kill-buffer-on-exit) which will really close the mail window
+in your `.emacs` file (or doing `M-x customize-variable
+message-kill-buffer-on-exit`) which will really close the mail window
after sending it.
## Attaching files